"I think it is very obvious that she is not credible. I think the fact that she recorded people supposedly in the Situation Room, supposedly in the White House, all throughout her tenure, and is using that to kind of leverage coverage for her book because no one wants to cover this, I think says a lot about her credibility, which is that she doesn't really have any," Payton, who writes for The Federalist, told Hill.TV's Buck Sexton and Krystal Ball on "Rising."

"I do think, however, that it was a mistake to hire a reality TV star villain," she added.

Manigault-Newman, who appeared on the first season of "The Apprentice" with Trump and then two subsequent offshoots of the series, is in the midst of a media tour to promote her memoir, "Unhinged," which includes a series of explosive claims about the president.

She released a recording on Monday, which appears to be a phone conversation with the president in which he acted surprised about her firing.

Trump slammed Manigault-Newman in a series of tweets on Monday after she released the recording, claiming he rarely saw her at the White House and heard bad things about her.

Wacky Omarosa, who got fired 3 times on the Apprentice, now got fired for the last time. She never made it, never will. She begged me for a job, tears in her eyes, I said Ok. People in the White House hated her. She was vicious, but not smart. I would rarely see her but heard....

...really bad things. Nasty to people & would constantly miss meetings & work. When Gen. Kelly came on board he told me she was a loser & nothing but problems. I told him to try working it out, if possible, because she only said GREAT things about me - until she got fired!

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